Please provide the following when creating the Ticket:

Game Version number: 1.2.1.189
Modded?: No
If modded, please list the mods:

Issue Description:

TLDR:
There is no sound when starting a mission or starting the game. If i wait long enough in the main menu the music starts playing. As soon as i start a mission the sound stops again.

System:
OS: Ubuntu (24.04.1 LTS)
Audio Device: Headset via front aux interface
Proton Version(s): Hotfix (current; 31.01.2025), Experimental, 9.0-4

Other games and software can output sound. I can't see any sound output in the audio settings and the right output device is defined. The bug exists since installing the game. Up until now i only tried the tutorial mission.

There is another sound quirk that may be related. When tabbing in and out of the game the game seems to create multiple recording-streams but can not identify an input device. Other applications can use the headset microphone.